22208001 has 8 divisors (see below), whose sum is σ = 31352544. Its totient is φ = 13934400.

The previous prime is 22207973. The next prime is 22208009. The reversal of 22208001 is 10080222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22208001 - 2¹⁹ = 21683713 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22208009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217675 + ... + 217776.

It is an arithmetic number, because the mean of its divisors is an integer number (3919068).

Almost surely, 2^22208001 is an apocalyptic number.

It is an amenable number.

22208001 is a deficient number, since it is larger than the sum of its proper divisors (9144543).

22208001 is a wasteful number, since it uses less digits than its factorization.

22208001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435471.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 22208001 is about 4712.5365781074. The cubic root of 22208001 is about 281.0842357525.

Adding to 22208001 its reverse (10080222), we get a palindrome (32288223).

The spelling of 22208001 in words is "twenty-two million, two hundred eight thousand, one".